Chuck key



FIG. 1 is a front view of the chuck key incorporating my new design.

FIG. 2 is a top view.

FIG. 3 is a bottom view.

FIG. 4 is an enlarged left view.

FIG. 5 is an enlarged right view; and,

FIG. 6 is a perspective view.

The ornamental design for a chuck key, as shown and described.